Automatic lighting device for gas-stoves



vwQrz. SCHNEIDER. 4 AUTOMATIC LIGHTING DEVICE FOR G AS STOVES- APPLICATION FILED JULY 6, I920. I v 'I I Patented May 24, 1921',

2 SHEETS-SHEET 1 W. E.Schnez'der INVEN OR [bio/10b0- ATTORNEY w. E. SCHNEIDER. AUTOMATIC LIGHTING DEVICE FOR GAS STOVES.

? APPu'cAnou'mED-mu 6. 1920.

Patented May 24, i921.

' 1' swears-sneer 2 'W.E.'. Schneider ATTORNEY UNITED. STATESTPATENT oFF c-E.

WALTER E. SCHNEIDER, or rayon, OKLAHOMA.

T 0 all whom it may concern Be it known that I, WVALTER E. SCHNEI- DER, a citizen of UnitedStates, residing at Pryor, in the county of Mayes and State of Oklahoma, have invented new and useful matic igniting device which will operate to ignite gas issuing from the burner of a gas stove, the device being set in operation by turning on of the gasso that any danger caused by the gas flow stopping and. being with the :free end of the lever 17 and;this

subsequently renewed, will be prevented.

An important object'is the provision of a device of this character including pressure operated means for closing an electric circuit through the primary-winding of a spark coil, the secondary winding thereof being connected with spaced contacts or sparking points suitably mounted upon the burner proper;

An additional objectiis the provision of a device of .this character which will be comparatively simple and inexpensive in manufacture and installation, highly eflicient in use, durable in service, and a general improvement in" the art.

With the above and other objects and advantages in view,:the invention consists in the details of construction toibehereinafter more fully described'and claimed, and illustrated in the accompanying drawings in which- Figure l is a side elevation of my device showing it in position upon a gas stove and showing the parts in initial or inoperative position,

Fig. 2 is a similar view showing the parts moved to turn on the gas and close the electric circuit,

Fig. 3 is a longitudinal sectional view on the line 3-3 of Fig. 1,

Fig. 1 is a detail sectional view on the line 4-4 of Fig. 1,

Fig. 5 is a longitudinal sectional view through the control valve, and

Fig. 6 is a diagram of the electric circuit.

Referring more particularly to the drawings, the letter A designates a portion of a gas stove and B designates a burner thereof. The burner has associated therewith the i ,AU'roMAzrIo LIGHTING DEVICE FOR GAS-STOVES.

Specification f Letters Patent. I Patented May 24,1921.

Application filed July 6, 1920. Serial myaeaiss.

upon which is mounted a lever 17 engagingthe valve stem 15.

Secured upon the pipe D ata point spaced from the bracket 16, is a support 18 upon the upper end of which is pivotedaa lever 19 having one end connectedby a link 20 free end is preferably provided withia series -my invention I provide of holes 21 within anyone of'which the end of the link 20 may be engaged. The

other end portion 23 ofthe'lever19 is forked, as shown at 22. This entire lever serves as a contact.

Interposed in the pipe D atapoint con siderably removed from the support18, is

a T 24 withwhich is connected an upstanding cylinder 25 within Lwhich is slidably movable a piston '26 carried by a piston rod 27 which hasits upper end provided with a transverse pin 28 engaged within the fork 22. f

Clamped upon the pipe Dnbetween the T 2 1 and support 18, isa bar 29 which is insu-' latedfro'm the 'pipe andwhich lltSuitS upper. end carrying a 1 contact 30 engageable with the end portion 23 of the lever. This bar 29 is connected with one terminal of the primary winding 31 of a spark coil and the other terminal is connected with one pole of a source of current 32 which has its other pole connected with the support 18. The secondary winding 33 of the spark coil has its terminals connected with a pair of spaced contacts 341 secured over and insulated from the burner B and these contacts 34: are so formed as not to be destroyed by the heat from theburner.

The operation of the device is as follows:

Under ordinary conditions the parts are in the position shown in Fig. 1 with the piston 26 in its lowermost position. When a cook 35 located in the pipe D in advance of the T 2 1 is open to permit gas to 'fiow to the burner or to the entire stove, the pressure of the gas will cause the piston 26 to rise within the cylinder 25 and as the rod 27 is correspondingly moved the engagement of the pin 28 within the fork 22 will cause the lever arm 19 to be rocked, which movement will result in downward movement of the link 20 and swinging of the lever 17 which will release the pressure on the Valve stem 15 and permit the valve 14 to unseat so that gas will flow through the pipe D to the burner or burners. The parts are so arranged and timed that very shortly after the valve 14 is opened the arm portion 23will engage the contact 30 on the bar 29 which will close the circuit through the primary coil 31 of the spark coil whereupon the current introduced within the secondary winding 33 will pass to the sparking points 34 and 'jump the gap between them and cause ignition of the gas issuing from the burner B. It will be noted that the arm portion 23 merely wipingly engages the contact 30 for a very brief interval so that the contact will be almost instantly broken as soon as it is made to prevent running down of the battery. If the cock 35 is cut off or if the gas pressure to the apparatus should fail through any cause, the piston 26 will return to normal position and the valve 14 will reseat so that leaking of the gas when the flow is subsequently restored will be prevented and in this way it will be observed that any danger from failure of gas pressure will be eliminated as it is quite apparent that whenever the flow should be resumed the mechanism will operate as previously described to cause a spark between the points 34 to ignite the gas. To accomplish the automatic dropping of the piston the piston might be made as heavy as necessary.

While I have shown and described the preferred embodiment of my invention, it is of course to be understood that I reserve the right to make such changes in the form, construction, and arrangement of parts as will not depart from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim:

1. An igniting device comprising the combination with a gas conducting pipe, of a cutofi valve located within said pipe, a pivoted lever connected with said cutofl valve whereby to open. and close the same, a support carried by the pipe, a lever pivoted upon said support and connected with said first named lever, a cylinder connected and communicating with said pipe and having a piston movable therein, a rod connected with said piston, said rod being connected with said second named lever whereby upon movement of the piston said cutoff valve will be opened, and a cont-act disposed in the path of and engageable by said second named lever.

2. A gas igniting device comprising the combination with a gas conducting pipe, of a cutolf valve located in said pipe, a lever pivoted intermediate its ends and having one end connected with said valve whereby to open and close the same, a support extending upwardly from said conducting pipe, a second lever pivoted intermediate its ends upon said support. a link connected with one end of said second named lever and adjustably connected with the other end of said first named lever, the other end of said second named lever being forked, a cylinder connected and communicating with said pipe and extending upwardly, a piston operating within said cylinder, a piston rod connected with said piston, said piston rod being slidable within said fork, a transverse pin carried by said piston rod and engaging within the fork, and a contact supported from and insulated from said' pipe and disposed in the path of travel of the second named lever.

In testimony whereof I affix my signature. WALTER E. SCHNEIDER. 

